Inflating-pump for motor-vehicle tires.



M. BOHNE.

\ INFLATING PUMP FOR MOTOR VEHICLE TIRES.

APPLICATION FILED NOV. 28, 1908.

9 Isl Z22 6.5.5 e.: f

Patented Jan. 11, 1910.

Wm @MU rrr; ,serres reenter MX BOHNE, OF BERLN, GERMANY.

To all 'whom it may concern:

Be it known that l, MAX BoHNn, a snlogect of the King of Prussia, German Emperor,

and resident ot 37 Qranienstrasse, Berlin,

Germany, have invented certain new and useful improvements in ntleting-nmps for Motor-Vehicle Tires, ot which the iollowing is speciication.

m invention relates to the means irtiating the tires of motor vehicles. 'eeen proposed to provide the motor with pump mounted in some suitable place on the trarne of the motor and driven ifroni the motor for the purpose of intletinfg the tire. When such arrangements are not in the tlrst instance huilt in With the motor their addition involves inconveniences on account ot the exhaustive utilization ot all space in such cases and further such means did not tend to enhance the heauty of the cer, tricer or the lilre to which they Were added.

The object ot the present invention is to provide a form of drivingmechanism which shall avoid these ditculties.

'To vthis end the invention consists in providing a detachable iniiating pnmpx driven from a driven road Wheel in any convenient wey throngh mechanism forming no permanent part of the vehicle structure and adapted to 4he brought into operation When the motor vehicle is at a stand-still and the road Wheel or seid driving axle is raised from the ground.

Referring to the accompanying drawings which show two convenient methods of employing a detachable pump to a motor vehicle. Figure l shows a. section through the pump and driving mechanism attached to the projecting part of the Wlieelisnaft which is usually occupied by the dustcap, shows a modified form in which the arr igement is more compact and more easily applied to the Wheel driving shett.

The. wheel l which may he either a front or a rear wheel is driven by a shaft 2 and the shaft 2 is provided with a projecting part 3 on which the dust cap is usually screwed. When it is desired to use the pump this dust cap is removed and in place there- Speeication or" Letters etent,

Application filed -November 23, 196th ,mitting the sleeve otl den., il, litt?.

srial No. eei.

of a screwed sleeve is inserted on the shaft projection This sleeve l is provided with an eccentric or crenl; connected by a rod 6 to pump piston Y which reciprocates in e cylinder tlA rthe cylinder 8 is :formed in one with e 9 provided with ,a boss 9a in which the slee-,Yvs is rotatable. The pump cylinder 8 is ot' course provided with suitable valves es indicated. When it is desired to insert this form of pump in place the Whole casing 9 must he rotated together with the sleeve so as to screw the said sleeve onto the projection 3 This of course does not involve any ditliculty or special mechanical knowledge on the part :of the person employing the pump. When it is desired to use the ponen the motor vehicle is brought to stand still and the driven axle and road Wheel to which the coupling sleeve et is applied is raised romthe ground. The motor is then started andthe inflati'ng pump connected up to' the tires which it is desired to inilate. A more convenient forni, however? is illustrated in Fig. 2 in 'which e Sleeve l0 is provided in its central portion' "with an eccentric 1l lhy which the 'pump l2 is operated. IrIl he casing of the pump i2 provided with bosses 'which siirround the sleeve l0 on each side of the eccentric ll end the exterior of the sleeve l0 is orovided with e hexagonal or like head i3 hy which the sleeve .l0 may be readily screwed into place on the shaft projection 5. 'Q

In lootli the arrangements described the direction ci' rotation or the shaft 3 visof course such that the screw on the projection 3 tightens in the sleeve during driving. Further dering Working or" the pump the casing oi the saine may be held in anyconvenient Way. y

l claim l. ln combination with the axle of a driving Wheel of a motor cer and the like having a projecting 'portion on one side, 'a detachable coupling having; a sleeve thereon engaging said projecting portion, a boss per- 'seid coupling to rotate therein, a casing associated with said boss which casing acts as the cylinder ot a 

